Finding the Fourth Proportional to 221,451.70, 332,177.55 and 142,719.70
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Solution
The fourth proportional to 221,451.70, 332,177.55 and 142,719.70 is: 214,079.55
Step by Step Solution
- Step 1: Write the proportion equation
221,451.70 : 332,177.55 = 142,719.70 : x - Step 2: Convert to fraction form
221,451.70/332,177.55 = 142,719.70/x - Step 3: Cross multiply
221,451.70x = 332,177.55 × 142,719.70 - Step 4: Simplify right side
221,451.70x = 47,408,280,282.74 - Step 5: Solve for x
x = 47,408,280,282.74/221,451.70 - Step 6: Final answer
x = 214,079.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.